Part 2 — Search, palette, and settings

Short summary

A hands-on SwiftUI tutorial showing how to add adaptive navigation (sidebar on iPad, tab bar on iPhone), a ⌘K command palette, skeleton loaders, and a settings screen to a Contacts app. Uses DFSidebar and DFTabBar components with a shared Section enum for routing. Includes code examples for responsive layout decisions and per-component token overrides.

• •Adaptive shell switches between DFSidebar and DFTabBar based on horizontal size class
• •Command palette on ⌘K exposes every app action
• •Settings screen with notifications, density, sync interval, and token overrides

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